Cassell Kay Ann <br/><br/>
Reference information services in the 21st century    An introduction 

 - 2nd ed rev. 
 - London  Facet Publication UK       2009 
 - xvii,459p.  cm. 
<br/><br/><label>ISBN: </label>978856047784 (pbk)  3784.34 
<br/><br/><label>Standard No.: </label>256,499 
<br/><br/><label>Source: </label> IN4435, 13/12/2011, New India Book Agency  Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LIBRARY SCIENCE
<br/><br/><label>Dewey Class. No.: </label>2:7.1'P, P6;P9